Скачать или смотреть Newton's laws of motion class 11th chapter 4 physics part 1 IMPULSE

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Newton's Laws of Motion
First Law (Law of Inertia)
An object at rest remains at rest, and an object in motion remains in motion with the same speed and direction unless acted upon by an external force.
Inertia is the tendency of an object to resist changes in its state of motion.

Second Law (Law of Acceleration)
The rate of change of momentum of an object is directly proportional to the applied force and takes place in the direction of the force.
Mathematically, F = ma (Force = mass × acceleration).

Third Law (Law of Action and Reaction)
For every action, there is an equal and opposite reaction.
When object A exerts a force on object B, object B exerts an equal and opposite force on object A.

Impulse
Impulse (J) is defined as the product of the average force (F) and the time (Δt) for which the force acts.
Mathematically, J = F × Δt.
Impulse is also equal to the change in momentum (Δp) of an object.
J = Δp = m(v - u), where m is mass, v is final velocity, and u is initial velocity.
Impulse is a vector quantity and has the same direction as the force.

Key Points
Impulse helps in understanding the effect of a force acting over a short duration.
It explains how a large force acting for a short time can cause a significant change in momentum.